EP 0421938 A2 19910410 - Improvements of unit drafting mechanism of a spinning machine.
Title (en)
Improvements of unit drafting mechanism of a spinning machine.
Title (de)
Streckwerk für eine Spinnmaschine.
Title (fr)
Système d'étirage d'un métier à filer.
Publication
Application
Priority
JP 25827189 A 19891003
Abstract (en)
An improvement of a unit drafting mechanism of a spinning machine, provided with at least one unit drafting mechanism, provided with a pair of slide metals (3,4) disposed on roller stands facing each other and a plurality of bottom rollers (5,6,7) and top rollers (25,26,27,28) journaled on these slide metals (3,4) in a rotatable condition, wherein each bottom roller (5,6,7) is provided with an axial air passage (12) formed coaxially with its center axis, air jet apertures (13,14) are radially formed at both end portions near to the bearing bores (9) of the slide metals (3,4) each aperture (13,14) is connected to the axial air passage (12), and the axial air passage (12) is connected to a source (21) of compressed air, whereby the possible deposition of flies in the circumference and journal portions of draft rollers can be effectively eliminated by continuously or intermittently supply compressed air through the axial air passage (12) of the bottom rollers (5,6,7).
IPC 1-7
IPC 8 full level
D01H 5/60 (2006.01); D01H 5/64 (2006.01); D01H 5/74 (2006.01); D01H 11/00 (2006.01)
CPC (source: EP US)
D01H 5/645 (2013.01 - EP US); D01H 5/74 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE IT LI
DOCDB simple family (publication)
EP 0421938 A2 19910410; EP 0421938 A3 19920415; EP 0421938 B1 19951227; DE 69024450 D1 19960208; DE 69024450 T2 19960530; JP 2750417 B2 19980513; JP H03119121 A 19910521; US 5088157 A 19920218
DOCDB simple family (application)
EP 90810753 A 19901003; DE 69024450 T 19901003; JP 25827189 A 19891003; US 59208290 A 19901003